The first step in the art of cutting metals is to find a man who has the necessary skill and experience.
切割金属艺术的第一步是找到一个具备必要技能和经验的人。
The world is full of obvious things which nobody by any chance ever observes.
The next generation of scientists will solve problems we can’t even imagine today.
创新是解决世界许多问题的关键，它需要实验和冒险的自由。